| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1982 | MD | D | State Senate | District 016 | Primary | 1 | 5,626 | 55.4% | |
| 1982 | MD | D | State Senate | District 016 | General | 2 | 16,906 | 49.1% | |
| 1986 | MD | D | State House | District 016 | Primary | 2 | 8,419 | 20.5% | |
| 1986 | MD | D | State House | District 016 | General | 3 | 20,145 | 19.7% | |
| 1990 | MD | D | State House | District 016 | Primary | 2 | 10,773 | 30.2% | |
| 1990 | MD | D | State House | District 016 | General | 2 | 21,901 | 22.1% | |
| 1994 | MD | D | State Senate | District 016 | Primary | 1 | 11,589 | 89.6% | |
| 1994 | MD | D | State Senate | District 016 | General | 1 | 25,292 | 63.8% | |
| 1998 | MD | D | State Senate | District 016 | General | 1 | 28,311 | 69.3% | |
| 2002 | MD | D | State Senate | District 016 | General | 1 | 32,478 | 72.1% | |
| 2006 | MD | D | State Senate | District 016 | General | 1 | 35,290 | 75.7% | |
| 2010 | MD | D | State Senate | District 016 | General | 1 | 30,762 | 70.5% | |
| 2014 | MD | D | Attorney General | Primary | 1 | 228,360 | 49.6% | ||
| 2014 | MD | D | Attorney General | General | 1 | 901,830 | 55.5% | ||
| 2018 | MD | D | Attorney General | Primary | 1 | 505,897 | 100.0% | ||
| 2018 | MD | D | Attorney General | General | 1 | 1,474,833 | 64.8% | ||
|
Age: Age as of July 1 of the year pertaining to this election. |